Mechanical Properties and Microstructure of Class C Fly Ash-Based Geopolymer Paste and Mortar

This paper presents workability, compressive strength and microstructure for geopolymer pastes and mortars made of class C fly ash at mass ratios of water-to-fly ash from 0.30 to 0.35. Fluidity was in the range of 145–173 mm for pastes and 131–136 mm for mortars. The highest strengths of paste and m...

Descripción completa

Detalles Bibliográficos
Autores principales: Li, Xueying, Ma, Xinwei, Zhang, Shoujie, Zheng, Enzu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2013
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5452326/
https://www.ncbi.nlm.nih.gov/pubmed/28809222
http://dx.doi.org/10.3390/ma6041485
_version_ 1783240389326536704
author Li, Xueying
Ma, Xinwei
Zhang, Shoujie
Zheng, Enzu
author_facet Li, Xueying
Ma, Xinwei
Zhang, Shoujie
Zheng, Enzu
author_sort Li, Xueying
collection PubMed
description This paper presents workability, compressive strength and microstructure for geopolymer pastes and mortars made of class C fly ash at mass ratios of water-to-fly ash from 0.30 to 0.35. Fluidity was in the range of 145–173 mm for pastes and 131–136 mm for mortars. The highest strengths of paste and mortar were 58 MPa and 85 MPa when they were cured at 70 °C for 24 h. In XRD patterns, unreacted quartz and some reacted product were observed. SEM examination indicated that reacted product has formed and covered the unreacted particles in the paste and mortar that were consistent with their high strength.
format Online
Article
Text
id pubmed-5452326
institution National Center for Biotechnology Information
language English
publishDate 2013
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-54523262017-07-28 Mechanical Properties and Microstructure of Class C Fly Ash-Based Geopolymer Paste and Mortar Li, Xueying Ma, Xinwei Zhang, Shoujie Zheng, Enzu Materials (Basel) Article This paper presents workability, compressive strength and microstructure for geopolymer pastes and mortars made of class C fly ash at mass ratios of water-to-fly ash from 0.30 to 0.35. Fluidity was in the range of 145–173 mm for pastes and 131–136 mm for mortars. The highest strengths of paste and mortar were 58 MPa and 85 MPa when they were cured at 70 °C for 24 h. In XRD patterns, unreacted quartz and some reacted product were observed. SEM examination indicated that reacted product has formed and covered the unreacted particles in the paste and mortar that were consistent with their high strength. MDPI 2013-04-09 /pmc/articles/PMC5452326/ /pubmed/28809222 http://dx.doi.org/10.3390/ma6041485 Text en © 2013 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Article
Li, Xueying
Ma, Xinwei
Zhang, Shoujie
Zheng, Enzu
Mechanical Properties and Microstructure of Class C Fly Ash-Based Geopolymer Paste and Mortar
title Mechanical Properties and Microstructure of Class C Fly Ash-Based Geopolymer Paste and Mortar
title_full Mechanical Properties and Microstructure of Class C Fly Ash-Based Geopolymer Paste and Mortar
title_fullStr Mechanical Properties and Microstructure of Class C Fly Ash-Based Geopolymer Paste and Mortar
title_full_unstemmed Mechanical Properties and Microstructure of Class C Fly Ash-Based Geopolymer Paste and Mortar
title_short Mechanical Properties and Microstructure of Class C Fly Ash-Based Geopolymer Paste and Mortar
title_sort mechanical properties and microstructure of class c fly ash-based geopolymer paste and mortar
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5452326/
https://www.ncbi.nlm.nih.gov/pubmed/28809222
http://dx.doi.org/10.3390/ma6041485
work_keys_str_mv AT lixueying mechanicalpropertiesandmicrostructureofclasscflyashbasedgeopolymerpasteandmortar
AT maxinwei mechanicalpropertiesandmicrostructureofclasscflyashbasedgeopolymerpasteandmortar
AT zhangshoujie mechanicalpropertiesandmicrostructureofclasscflyashbasedgeopolymerpasteandmortar
AT zhengenzu mechanicalpropertiesandmicrostructureofclasscflyashbasedgeopolymerpasteandmortar

Ejemplares similares